#include <iostream>
#include "Date.h"
// Driver Program to check your implementation
int main()
{
Date date1(3, 8, 2018);
Date date2 = date1.DateAfter(13);
Date date3 = date1.DateBefore(25);
date1.setDay(25);
date2.setMonth(12);
date3.setYear(2015);
cout << date1.numberOfDays() << endl;
cout << date2.dayOfWeek() << endl;
date3.printMonthCalendar();
return 0;
}
#ifndef Date_h
#define Date_h
#include <iostream>
#include <string>
using namespace std;
class Date
{
public:
Date(int day, int month, int year);
~Date();
/*Get function for accessing private member*/
int getDay();
int getMonth();
int getYear();
/*Set function for updating private member*/
void setDay(int day);
void setMonth(int month);
void setYear(int year);
/*A Function that returns the date after a given date
For e.g-
today is 8/3/2018 (Day/Month/Year)
DateAfter(3) should return a date of 11/3/2018 */
Date DateAfter(int days);
/*A Function that returns the date after a given date
For e.g-
today is 8/3/2018 (Day/Month/Year)
DateBefore(3) should return a date of 5/3/2018 */
Date DateBefore(int days);
/*A Function that returns the day of a date
For e.g-
if the date is 8/3/2018, then the day() function
should return "Thursday"
*/
string dayOfWeek();
/* A Function to return the number of days in
Current Month.
Month Number Name Number of Days
0 January 31
1 February 28 (non-leap) / 29 (leap)
2 March 31
3 April 30
4 May 31
5 June 30
6 July 31
7 August 31
8 September 30
9 October 31
10 November 30
11 December 31*/
int numberOfDays();
/* Function to print a calendar of the current month.
Just like what you see on a calendar. An example is like
--------------March--------------
Sun Mon Tue Wed Thu Fri Sat
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
*/
void printMonthCalendar();
private:
/*Current Date*/
int day;
int month;
int year;
};
void round_up(Date &x);
void round_down(Date &x);
int Date::getDay(){
return day;
}
int Date::getMonth(){
return month;
}
int Date::getYear(){
return year;
}
void Date::setYear(int year){
Date::year=year;
}
void Date::setMonth(int month){
Date::month=month;
}
void Date::setDay(int day){
Date::day=day;
}
Date Date::DateAfter(int days){
day+=days;
Date::Date n(Date::day,Date::month,Date::year);
round_up(n);
return n;
}
Date Date::DateBefore(int days){
day-=days;
Date::Date n(day,month,year);
round_down(n);
return n;
}
string Date::dayOfWeek(){
if(month==1 || month==2){
month+=12;
year--;
}
int Week=(day+2*month+3*(month+1)/5+year+year/4-year/100+year/400)%7;
switch(Week){
case 0: return "Monday";
case 1: return "Tuesday";
case 2: return "Wednesday";
case 3: return "Thursday";
case 4: return "Friday";
case 5: return "Saturday";
case 6: return "Sunday";
}
return "error";
}
void round_up(Date &x){
int day=x.getDay();
int month=x.getMonth();
int year=x.getYear();
int day_limit[12+1]={0,31,28,31,30,31,30,31,31,30,31,30,31};
if( year%400==0 || (year%4==0 && !year%100==0 ))
day_limit[2]=29;
while( day>day_limit[month] ){
day-=day_limit[month];
month++;
while(month>12){
month-=12;
year++;
if( year%400==0 || (year%4==0 && !year%100==0 ))
day_limit[2]=29;
else
day_limit[2]=28;
}
}
}
void round_down(Date &x){
int day=x.getDay();
int month=x.getMonth();
int year=x.getYear();
int day_limit[12+1]={0,31,28,31,30,31,30,31,31,30,31,30,31};
if( year%400==0 || (year%4==0 && !year%100==0 ))
day_limit[2]=29;
while(day<1){
day+=day_limit[month-1];
month--;
if(month<1){
month+=12;
year--;
if( year%400==0 || (year%4==0 && !year%100==0 ))
day_limit[2]=29;
else
day_limit[2]=28;
}
}
}
string name_of_month(int month){
switch(month){
case 1: return "January";
case 2: return "February";
case 3: return "March";
case 4: return "April";
case 5: return "May";
case 6: return "June";
case 7: return "July";
case 8: return "August";
case 9: return "September";
case 10:return "October";
case 11:return "November";
case 12:return "December";
}
return "error";
}
int Date::numberOfDays(){
int day_limit[12+1]={0,31,28,31,30,31,30,31,31,30,31,30,31};
if( year%400==0 || (year%4==0 && !year%100==0 ))
day_limit[2]=29;
return day_limit[getMonth()];
}
void Date::printMonthCalendar(){
int month=getMonth();
cout<<"--------------"<<name_of_month(month)<<"--------------"<<endl;
cout<<"Sun Mon Tue Wed Thu Fri Sat"<<endl;
}
#endif /* Date_h */
